Re: [Development] QtWebEngine unbundled of third-party libraries on Linux
On Friday 11 September 2015 19:26:22 Allan Sandfeld Jensen wrote: [snip] > > [Exactly one month later...] > > > > I'll try to check this during the weekend. I'm terribly sorry for not > > doing > > it sooner, but life gets in the middle too much lately :-/ As it happened again, I'm trying to catch up now. I failed to see relevant changes between 5.5 and 5.6 in the qtwebengine submodule git repo. Maybe I should look somewhere else? [snip] > Btw. If you know the people packaging Chromium, you could point them my way, > we could probably share patches. Not really, only thing I know is that their mailing list is https://lists.alioth.debian.org/mailman/listinfo/pkg-chromium-maint and the git repository is http://anonscm.debian.org/cgit/pkg-chromium/pkg-chromium.git Check for patches in debian/patches subdir. We used to have a patch tracker but sadly it's not working anymore :( -- http://xkcd.com/162/ Lisandro Damián Nicanor Pérez Meyer http://perezmeyer.com.ar/ http://perezmeyer.blogspot.com/ ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] QtWebEngine unbundled of third-party libraries on Linux
On Friday 11 September 2015, Lisandro Damián Nicanor Pérez Meyer wrote: > On Tuesday 11 August 2015 23:17:31 Allan Sandfeld Jensen wrote: > > Hello Qt > > > > QtWebEngine and Chromium in the Qt 5.6 branch have been patched to allow > > linking with system libraries on Linux instead of bundled libraries. For > > most libraries the system library will be used if development files are > > detected on the system. ICU and FFMPEG however defaults to using the > > bundled copies and requires using qmake arguments to configure to use > > system versions. The required arguments are listed in qmake configure > > status (just delete .qmake.cache and run qmake to run the configure step > > again). Note that for FFMPEG, the libav libraries from the FFMPEG project > > are required, the libraries from the libav project does not work. > > > > I have so far only tested on Debian. If more people could test it we > > could also get better detection and set proper minimal versions. > > > > If you are a packager and more is required before QtWebEngine can be > > packaged on your distribution, please let me know. > > [Exactly one month later...] > > I'll try to check this during the weekend. I'm terribly sorry for not doing > it sooner, but life gets in the middle too much lately :-/ > > Do you think it would be possible to build it against Qt 5.5? Just for > testing purposes, of course. Yes it does, and I intend to to keep it that way :D It is not a supported configuration, but to the extend it is possible, I will try to make Qt WebEngine build with one version older Qt. With QtWebKit I kept it working with two version older, but WebEngine moves much faster and has a tight integration with the scene graph, so let's see. Btw. If you know the people packaging Chromium, you could point them my way, we could probably share patches. Best regards `Allan ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] QtWebEngine unbundled of third-party libraries on Linux
On Tuesday 11 August 2015 23:17:31 Allan Sandfeld Jensen wrote: > Hello Qt > > QtWebEngine and Chromium in the Qt 5.6 branch have been patched to allow > linking with system libraries on Linux instead of bundled libraries. For > most libraries the system library will be used if development files are > detected on the system. ICU and FFMPEG however defaults to using the > bundled copies and requires using qmake arguments to configure to use > system versions. The required arguments are listed in qmake configure > status (just delete .qmake.cache and run qmake to run the configure step > again). Note that for FFMPEG, the libav libraries from the FFMPEG project > are required, the libraries from the libav project does not work. > > I have so far only tested on Debian. If more people could test it we could > also get better detection and set proper minimal versions. > > If you are a packager and more is required before QtWebEngine can be > packaged on your distribution, please let me know. [Exactly one month later...] I'll try to check this during the weekend. I'm terribly sorry for not doing it sooner, but life gets in the middle too much lately :-/ Do you think it would be possible to build it against Qt 5.5? Just for testing purposes, of course. -- Hacer algo siempre te llevará más tiempo del que esperabas, incluso si tienes en cuenta la ley de Hofstadter. Douglas Hofstadter http://mundogeek.net/archivos/2009/09/05/la-ley-de-hofstadter/ Lisandro Damián Nicanor Pérez Meyer http://perezmeyer.com.ar/ http://perezmeyer.blogspot.com/ ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] QtWebEngine unbundled of third-party libraries on Linux
On Tuesday 11 August 2015 23:17:31 Allan Sandfeld Jensen wrote: > Hello Qt > > QtWebEngine and Chromium in the Qt 5.6 branch have been patched to allow > linking with system libraries on Linux instead of bundled libraries. For > most libraries the system library will be used if development files are > detected on the system. ICU and FFMPEG however defaults to using the > bundled copies and requires using qmake arguments to configure to use > system versions. The required arguments are listed in qmake configure > status (just delete .qmake.cache and run qmake to run the configure step > again). Note that for FFMPEG, the libav libraries from the FFMPEG project > are required, the libraries from the libav project does not work. > > I have so far only tested on Debian. If more people could test it we could > also get better detection and set proper minimal versions. > > If you are a packager and more is required before QtWebEngine can be > packaged on your distribution, please let me know. I will of course take a look, but I highly doubt I'll be able to build it for a couple of weeks at least. And really *thank you* for this :) -- Lisandro Damián Nicanor Pérez Meyer http://perezmeyer.com.ar/ http://perezmeyer.blogspot.com/ signature.asc Description: This is a digitally signed message part. ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] QtWebEngine unbundled of third-party libraries on Linux
On Wednesday 12 August 2015, Robert Knight wrote: > > QtWebEngine and Chromium in the Qt 5.6 branch have been patched to > > allow linking with system libraries on Linux instead of bundled > > libraries. > > What upstream changes have the Chromium team made to the bundled libraries > compared to the system ones and are Chromium upstream supportive of taking > patches to facilitate using system libraries? > > I'm concerned that unbundling the libraries will break things - either via > bugs, features that stop working or security fixes that are missing from > system libs. > Most of the libraries we have unbundled are semi-officially supported as unbundled upstream. Chromium provides scripts that replaces and patches the build scripts before building Chromium. These are used by some Linux distros to unbundle libraries already. The scripts are however not well maintained, and we do not want to change source-files as part of the build process, so instead we have integrated the code-paths from the replacements into the original build-script files, and fixed and updated them where necessary. There are two libraries not unbundled: sqlite3 and leveldatabase, due to Chromium having modified these adding new Chromium specific APIs. Chromium also use internal/draft API of FFMPEG and ICU each in one place, which is why these are not unbundled by default. For ICU it should not be a problem however, they appear to be using draft API due to them misunderstanding how the normal API works. For FFMPEG, it seems to be some specific patching of synchronization, I haven't encountered any issues from just disabling that code though. As for security fixes, the idea is to get faster security updates, as the system libraries are fixed much faster than both Chromium and QtWebEngine. Best regards `Allan ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] QtWebEngine unbundled of third-party libraries on Linux
> QtWebEngine and Chromium in the Qt 5.6 branch have been patched to > allow linking with system libraries on Linux instead of bundled libraries. What upstream changes have the Chromium team made to the bundled libraries compared to the system ones and are Chromium upstream supportive of taking patches to facilitate using system libraries? I'm concerned that unbundling the libraries will break things - either via bugs, features that stop working or security fixes that are missing from system libs. On 11 August 2015 at 22:17, Allan Sandfeld Jensen wrote: > Hello Qt > > QtWebEngine and Chromium in the Qt 5.6 branch have been patched to allow > linking with system libraries on Linux instead of bundled libraries. For > most > libraries the system library will be used if development files are > detected on > the system. ICU and FFMPEG however defaults to using the bundled copies and > requires using qmake arguments to configure to use system versions. The > required arguments are listed in qmake configure status (just delete > .qmake.cache and run qmake to run the configure step again). Note that for > FFMPEG, the libav libraries from the FFMPEG project are required, the > libraries from the libav project does not work. > > I have so far only tested on Debian. If more people could test it we could > also get better detection and set proper minimal versions. > > If you are a packager and more is required before QtWebEngine can be > packaged > on your distribution, please let me know. > > Best regards > `Allan Jensen > > -- > > The Qt Company > Rudower Chausse 13, 12489 D-Berlin > > The Qt Company is a group company of Digia Plc, > Valimotie 21, FI-00380 Helsinki Finland > ___ > Development mailing list > Development@qt-project.org > http://lists.qt-project.org/mailman/listinfo/development > ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
[Development] QtWebEngine unbundled of third-party libraries on Linux
Hello Qt QtWebEngine and Chromium in the Qt 5.6 branch have been patched to allow linking with system libraries on Linux instead of bundled libraries. For most libraries the system library will be used if development files are detected on the system. ICU and FFMPEG however defaults to using the bundled copies and requires using qmake arguments to configure to use system versions. The required arguments are listed in qmake configure status (just delete .qmake.cache and run qmake to run the configure step again). Note that for FFMPEG, the libav libraries from the FFMPEG project are required, the libraries from the libav project does not work. I have so far only tested on Debian. If more people could test it we could also get better detection and set proper minimal versions. If you are a packager and more is required before QtWebEngine can be packaged on your distribution, please let me know. Best regards `Allan Jensen -- The Qt Company Rudower Chausse 13, 12489 D-Berlin The Qt Company is a group company of Digia Plc, Valimotie 21, FI-00380 Helsinki Finland ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
